Malicious PDF — malware analysis report

Static analysis result for SHA-256 52ed614661ab94a0…

MALICIOUS

PDF

34.4 KB Created: 2021-06-25 20:53:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 94c5ad43ea6227a2d78a49a6956d08eb SHA-1: 1dfc84edbb03fe9c6312b08ad98d56851cc97da4 SHA-256: 52ed614661ab94a0af2304a32a0066d768d5a86d36c944f8417b7213188f5a93
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game currency and hacks to trick users into clicking malicious links. The embedded URLs, including http://netcdn.co/app/431946152/roblox-skywars-how-to-get-free-coins-game-hack, lead to known malicious redirector infrastructure. The document's content and structure strongly suggest it is part of a phishing or scam campaign designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/roblox-skywars-how-to-get-free-coins-game-hack In PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-galleons-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-roblox-card-generater_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-get-loads-of-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-hack-roblox-accounts-mobile_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-rs-hack-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/hack-clinet-for-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-to-get-free-robux-flame-gg_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-free-accounts-may-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/gun-hack-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-speed-cheat_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/how-do-i-get-free-robux-without-scams-and-ads_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-scp-anomaly-breach-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/redline-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/roblox-ban-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.pasca.unand.ac.id/repository/c-face-free-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ebc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EBC 22288 bytes
SHA-256: 237a28fd3fa92f46ece659ab9ecb56c2b78716d24b3c11eed0db4330bdaffaa1
font_01_sfnt_off00006078.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6078 19388 bytes
SHA-256: 2c1773a9235749a3aaef87fa87ab1722f94eba9b9105e5679805fa3e51e151a2